System and method for categorizing objects in combined categories
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United States of America Patent
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Aug 24, 1999
Grant Date -
N/A
app pub date -
Nov 21, 1997
filing date -
Nov 21, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a system and method for determining whether the best category for an object under investigation is a mixture of preexisting categories, and how the mixture is constituted. This invention is useful both for suggesting the need for new categories, and for a fixed set of categories, determining whether a document should be assigned to multiple categories. The objects of the categorization system are typically, but need not be, documents. Categorization may be by subject-matter, language or other criteria. The invention causes extra information to be stored in a category index, so that the determination of mixed categories using the methods presented here is performed extremely efficiently.
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